codex-skills

Review Elastic ES|QL queries for Elasticsearch 9.4/9.5 compatibility, correctness, Prometheus and 01.metrics operational-metric semantics, alert reliability, and query performance. Use when Codex is asked to inspect, critique, fix, or rewrite ES|QL pipelines, especially Elastic/Kibana alert queries embedded in .yaml/.yml files or standalone .esql queries.

Apply Effective Java (2nd edition) concurrency best practices when writing or reviewing multi-threaded Java code: synchronization/visibility, avoiding excessive locking, executors, concurrency utilities, thread-safety docs, lazy init, scheduler independence, and avoiding thread groups.

Apply Effective Java (2nd edition) best practices when writing or reviewing Java code: object creation/lifecycle, equality, class design, generics, enums/annotations, methods, general programming, exceptions, and serialization (excludes concurrency).